LONDON — A teenage burglar in Britain wrote to his victims telling them he was not sorry and they were to blame because they had left their curtains open and a window unlocked, it was revealed Thursday.

“To be honest I’m not bothered or sorry about the fact that I burgled your house,” the 16-year-old boy wrote to his victims, before offering to “run through the dumb mistakes you made”, according to The Times.

He had struck in the northern English city of Leeds, stealing televisions, a camera and a Playstation games console.

Writing the letter, which was reproduced in the newspaper, was supposed to be a key part of the 12-month intensive supervision programme that the boy was sentenced to after being arrested.

Yet the approach backfired when in the letter, riddled with grammatical errors and spelling mistakes, the boy wrote: “Your thick enough to leave your downstairs kitchen window open. I wouldnt do that in a million years.

“But anyways I dont feel sorry for you and Im not going to show any sympath or remores.”

The letter was never sent to his victims, but police were so disgusted by the burglar’s lack of contrition that they have made it part of a campaign to persuade householders to make their properties more secure this Christmas.

Chief Inspector Melanie Jones of West Yorkshire Police said: “We are working hard to target and reduce burglary but the biggest impact we can make is by working together to ensure burglars are not given a series of easy targets.

“The contents of the letter are disgusting but it highlights the cold and dispassionate way burglars select a property to target.”